Res Humanitariae

In the article on the basis of the comparative and typological analysis of phonetic systems of the Russian, Latvian and Lithuanian literary languages the facts of the Latvian-Russian and Lithuanian-Russian phonetic interference are systematized. The typology of the phonetic interference, offered by U. Weinreich, is used for this purpose. Four types of a phonetic interference are considered: insufficient differentiation of phonemes, superdifferentiation of phonemes, reinterpretation of distinctions, substitution of sounds. The typology forms theoretical base for forecasting of a phonetic interference.